Article covering machine



March 30, 1937. A. LINDNER I ARTICLE COVERING MACHINE 6 Sheets-Sheet lFiled Feb. 23, 1934 March 30,' 1937.- A V| |NDNER 2,075,213

- ARTICLE COVERING MACHINE ATTORNEY- I I March 30, 1937. A. LINDNER IARTICLE COVERING MACHINE Filed Feb. 23, 1934 6 Sheets-Sheet 5l-lIll-lllllllh nnnm mill

March 30, 1937. A. LI NDNER ARTICLE COVERING MACHINE Filed Feb. 25, 1954e Sheets-Sheet 4 ENTOR z ruZner RNEY w I. will m 2. M- ,l w. i a. 1:2.l, 4 l]! m mfl A M W. J1

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A. LAINDNER March 30, 1937.

ARTICLE COVERING, MACHINE v 6 Sheets-Sheet 5 v Filed Feb. 23, 1934 NTORrmner BY L V.

41v? ATTORNEY A. LINDNER March 30, 193 7.

ARQICLE COVERING MACHINE.

6 Sheets-Sheet 6 Filed Feb. 23, 1934 INVENTOR 66150209151 BY Q MATTORNEY Patented' Mar. 30, 1937 UNITED STATES PATENT OFFICE ARTICLECOVERING MACHINE.

Application February 23, 1934, Serial No. 712,447

, 18 Claims.

My invention relates to a machine for covering articles or cores and forthe purpose of showing the utility of the invention I shall hereinilluser aspects of the invention to a machine adapted for the. purposeindicated. The machine involves principles of general application whichmay be variously adapted and modified for covering and ornamentingarticles of different kinds, not only of ring-shaped cores or pullpieces for window shades, but also other articles of various designs andshapes and having other and diifere'nt uses, and therefore it is myintention to cover in some of the broader claims hereunto appended,these principles in any modification, of construction, design andfunction and interconnection inwhich they may be embodied, as well as tocover the particular adaptation of such principles herein specificallyillustrated and described.

An object of my invention is the provision of a machine of the characterdescribed embodying certain desired features of simplicity andconvenience and which will function automatically ing the same with cordor thread windings consisting of fabric material or the like, andfurther to encase the core after the fashion of woven work,'stitchconnecting or interlocking the cord ering of an ornamental character.

A further object of the invention is the provision of a machine which isadapted to use cords, threads or the like of different sizes and gaugesfor the covering of cores and similar articles.

More particularly considered, the. machine of the present invention forthe performance of the functions and the accomplishment of the resultsherein contemplated, involves coacting and cooperating mechanisms andparts as follows: cordapplying and stitching mechanism which includes awell-known type of latch needle implement having a hook and pivotedlatch; looper mechanism for carrying cord, forming loops and presentingthe same to the needle hook; loop stripping mechanism for the needle;work feeding mechanism; a stop motion control whereby automatically topredetermine the number of convolutions and stitch connections; andother combined parts and mechanisms having to do, in the manner as herento encase a ring-shaped core or the like by coverconvolutions to make asubstantial, durable covinafter set forth, with automatic operation,control and precision, and devised to facilitate the manufacture ofcovered articles by operators possessing only ordinary skill insuch-matters.

The nature of the general principles above referred to, as well as otherand additional objects w and advantages which will become apparent asthe description proceeds, and the manner in which as an example they maybe embodied in concrete form and means are explained in the followingdetailed description of the simple and practical embodiment hereinillustrated;' and the invention resides in the construction, combinationand relative arrangement of parts hereinafter described and claimed.

.In the accompanying drawings, wherein I have disclosed one practicalembodiment of the several novel features of my invention and whereinsimilar reference characters designate corresponding parts throughoutthe several views:-

v Figure 1 is a fragmentary side elevational view, partly in section, ofa machine'embodying the present invention, this view being takensubstan-. tially on the line |l of Figure 3;

Fig. 2 is an elevational view of the lefthand end, or head end, of themachine shown in Fig. 1, parts being broken away and parts being shownin section;

Fig. 3 represents a top plan view and section taken substantially on theline 3-3 of Fig. 2;

Fig. 3a is a fragmentary elevational view of the stop disk andratchet'mechanism for the selfsetting stop motion control;

Fig. 4 is a, detailed horizontal section taken on the line 4-4 of Fig.1;

. Fig. 5 is a detailed vertical section taken on the 3 line 5-5 of Fig.4;

Fig. 6 is a detailed vertical section taken on the line 66 of Fig. 1,showing the cam means for the stripping mechanism;

Fig. '7 is a sectional elevational view showing portions of the latchneedle stitching mechanism, looper mechanismf stripping mechanism andwork-feeding mechanism;

Fig, 8 is a detailed horizontal section taken on the line 88 of Fig. '7;

Fig. 9 is a detailed sectional elevation taken on the line 3-9 of Fig.7;

Fig. 10 is a view similar to Figj'l, but showing the parts in differentrelative positions and with the needle in forward position above thework,

and also showing a few stitches upon the workpiece;

Fig. 11 is a vertical section taken on the line ll-H of Fig. 10;

Figs. 12 to 20, inclusive, are fragmentary detailed views, generallyprogressive in character,

showing how the cord convolutions are produced on the core and stitchedthereon by chain 6 stitches. Of these, Figs. 12 and 13 show the parts inthe position in which a loop may be gathered when the needle is abovethe work, Fig. 12 being a vertical section on the line l2-l2 of Fig.13,. and Fig. 13 being a sectional plan on the line l2-I2 of Fig. 12.Figs. 14 to 16 show the steps involved in producing a chain stitch. Fig.17 is a vertical section on the line l1-'-|1 of Fig." 16. Figs. 18 to 20show the steps involved in gathering a stitch below the work, Fig. '19being a sectional plan on 1 the line l6-I9 of Fig. 18.

Fig. 21 is a plan view of a ring-shaped core partially covered withchain stitchedcord windings and showing also the loop continuation ofthe cord by means of which the pull piece may be suspended from a windowshade.

- In the following description of the disclosed machine the constructionand general operation of the various mechanisms will be treatedseparately, after which the description will proceed with the coactionand cooperation of the mechanisms for covering'a core. The body orframework of the machine of the disclosure is similar to that of anordinary sewing machine; but this is not essential as the working partsmay be supported in any suitable or approved framing or construction.The core piecedisclosed hereinv and which is to be covered is in theform of a ring or washer of the type commonly employed as the core orfoundation member for the pull ring of a window shade. This is notessential, as the machine in its broad aspect is adapted to cover coresof various forms'and shapes, as well as other articles having variousforms and shapes. While the covering cord shown in the drawings is ofrelatively large size because it is also intended for use as a pull cordconnection for window I shades,- it will be understood that the coactingmechanisms of the machine are adapted to function to cover cores orarticles with cord of various sizes and also with threads.

Referring now in detail to the accompanying drawings, I show for thepurpose of illustrating how the various mechanisms and working partsinvolved in my invention may be suitably supported and interconnectedfor carrying out the functions and advantages of the invention, atypical sewing machine framework comprising a bed plateor work table 22supported upon ahollow base 22 adapted to rest upon or to be secured toa work table, bench or the like. Rising from the bed plate adjacent theright-hand or rear end thereof, as viewed in Fig. 1, is an uprightstandard 24 which supports an overhanging arm 26'the front or left-handend of which is pro- 80 rear extension 21 adjacent the front orleft-hand end ofthe'bed plate is a vertical spindle 28 on which isdisposed a bobbin 29 which carries the supply'of fabric coveringmaterial. In the present instance, the fabric material shownon thebobbin consists of a relatively thick endless cord or strand 'of thekind-commonly employed as a 22, for the accommodation of working parts,is

vided with a head 26. Mounted upon a suitable an article in the form ofa ring-shaped core or aovaara provided with a longitudinallyextendingopening 22 which below the head 22 is in open communicationwith a throat plate 22 which in the present instance includes anupstanding circularly formed'flange or collar 24 around which thetasselring26isdisposedasbestshownin1'iga'1to' 11, inclusive. Theexterior diameter of said up-' standing throat plate flange 24 is muchless than the interior diameter of the tassel ring '26 in order that thelatter can be readily moved or fed circularly for the cord coveringoperation. 25 denotes a presser foot plate which is attached to thelower end of a vertically disposed presser foot 1 plate bar 26 the upperend of which is slidably engaged in a suitableopening in the head topplate 21. By means of an expansion spring 28 imprisoned between the topplate 21 add a collar 29, said bar is normally urged downwardly tocontact and engage the presser foot plate 26 with the topedge of theupstanding throat plate 'flange'll. For the application and removal oftassel rings from the throat plate or holder 22. means are providedwhereby through a foot-treadle (not shown) or the like, the presser footmay be elevated against the tensioning of the spring 26, and

such means are herein represented as compris- 1 ing a foot-treadleconnecting rod 46 attached at its upper end to a throw-lever 4| carriedby plate 42 adjustable in a guide 42 and connected with a pull member 44slidable in a guide 46, which pull member adjacent its upper end isconnected with a horizontal. arm 46 attached to the upper end of thepresser footplate bar 26. By drawing the connecting rod 46 downwardly(through the actuation of the, foot-treadle) the presser foot. platemay-be elevated to permit the application or removal of a tassel ring.

Disp'osed within the overhanging arm 26 and in suitable bearingsprovided therein for the purpose is the main driving shaft 41 theright-hand end of which extends well beyond the upright.

standard 24 and carries a loose pulley 46 with which is connected aclutch part 46. Engaged with the pulley 42 is a driving belt 66 which isoperated from any suitable source of power as,

- for instance, froman electric motor (not shown).

main shaft 41, is located below the bed plate and mounted insuitablebearingsprovided in arms 54 depending from .-the-bed. plate.This second shaft 62 receives its motion from the main shaft 41 throughmeans comprising a vertically disposed shaft 66, a pair of upper'bevelgears 66 and a pair of lower bevel gears 61. Upon the shaft 62 aremounted three separate disk earns,

56, 66, and 66, the purposes and functions of which will be hereinafterexplained.

The strand or cord applying and stitching mechanism includes a latchneedle 6! having a hook" 62 and a pivoted latch 62. This latch needle issupported by a carrier shaft 64, a simple mode ofdetachably andadjustably connecting the latch needle with the carrier shaft consistingin inserting the shank of the latch needle into an axial opening in thefront end of the shaft and applying thereto a set screw 66 adapted tosecure the latch needle in the opening in the desired adjusted position.The shaft 64 has applied thereto at or nearits rear end a supportingblock or bushing 66 which in turn is pivotally supported by trunnions 61mounted in lugs "upstanding from a cross-head slide 66 the opposite endsof which are attached to slide rails 10 disposed for.

longitudinal reciprocation in guideways composed of oppositely disposedguide rails 1| and connected bottom plates 12, it being noted from Figs.

1, 4 and 5 that the needle carrier and its associated parts areaccommodated in the longitudinal opening 32 while the oppositeends ofthe cross-head slide 69 extendunderneath the bed reciprocated in thedirection of their length, and

the transmission means by which this reciprocation is effected from themain shaft 41 consists in the provision of a lever I3 which is fulcrumedto swing on a stud pin 14 secured transversely in the overhanging arm25. The lower end of the lever I3 has a lost-motion connection with theblock66 by means of an elongated slot 15 and a pin 16 on said blockwhich engages in this slot.

' At its upper end, the lever I3 carries a follower roller 11 which isin engagement with a cam slot' 18 provided in the-face of disk cam 19. Astud 80 suitably supported by the overhanging arm supports the disk cam19 for rotation and rigid with the disk cam 19 is a bevel gear 8| whichis 'Cal in mesh with a bevel gear 82 applied to the main shaft 41. Underthis arrangement, longitudinal reciprocating motion is imparted to thecarrier shaft 64 from the rotary motion of the main shaft 41 and inconnection with this reciprocating motion the carrier shaft is adaptedto be given vertical oscillationvdue to the trunnion connections betweenthe bushing 66 and the crosshead slide 69.

Motion is taken from the disk cam 58 for reciprocating the carrier shaft64 vertically up and down, that is to say, in a direction transverselyof the lengthwise reciprocation of this shaft. The transmission meansfor this purposeconsists in the provision of a vertical plate 83slidably mounted in a yoke frame 84 having upper lat- 7 erally extendingportions 85 disposed upon the top of the bed plate and adapted to besecured thereon by means of set screws 86' and slots 81, whichcooperating expedients incidentally provide means for adjusting the yokeframe in a direction transversely of the length of the bed plate. Thevertical plate 83 is cut away at its upper end to provide opposing arms88 carrying trunnions 89 whereon is provided a sleeve 90 in which thecarrier shaft 54- is slidably fitted. Said vertical slide plate 83 isprovided adjacent its lower end witha roller 9| having engagement in acam slot 92 provided in the face of the disk cam The disk cams 19 and 58with their respectively connected parts bear such relation to each otherthat the latch needle is reciprocated first at an upper level above thetassel ring, then moved downwardly to a lower level where it isreciprocated below the opposite or underneath face of movements may ingeneral be termed a threemotion actuation which is effect theapplication upon the tassel ring of cord covering convolutions and tochain-stitch such convolutions at the outer circumference of the Iiconnection with the latch needle carrier shaft' 64 there is provided aneedle loop stripping or casting-off mechanism which is operated fromthe disk cam attached to the belt pulley 48.

This peculiar combination ofnecessary in order to Thism chanismcomprises an-arm 93 formed 'with a down-turned loop-stripping portion93' having an opening 93" in which the needle with its latch is freelyactuable. -A-sleeve 94 slidable upon the carrier, shaft supports the arm93.

Pivotally connected with the sleeve 94 at the opposite sidesthereof arethe lower end. portions 95 of a lever'96 the upper end of which has apin and slot connection 911 with' the overhanging arm. Fulcrumed uponthe studpin .14 is a bell crank lever 98 one end of which is connectedby means of a link bar. 99 with the. lever 96, and the other end ofwhich is pivotally connected througha link bar I00 with ahead |0|furnished on the lower end of a vertical bar |02 having verticallysliding movement in a vertical guide frame I03. The upper end of saidbar I02 is provided with a roller |04 which turns in a cam" groove I05providedin the face of the disk cam 5|. Said cam groove I05 ischaracterized by having a triangular shaped portion I05 which serves asmeans forcausing a sudden forward operation of the stripping device uponthe latch needle so as to effect a quick casting off of loops gatheredthereon and in such manner as will permit an uninterrupted three-motionactuation of the latch needle implement. For normally retaining thelever 96 and associated parts inproper adjusted position for theirsudden actuation to effect a casting off of loops fromthe latch needleand as well for eiiectinga re-positioning of said lever 95 and itsassociated parts after each forward thrusting operation, a coiled springM1 is provided, which'spring'has one end thereof connected with a postI08 on the lever 96 while the other end thereof is connected with a hookI09 applied to the upright standard 24.

Theloop-forming and presenting mechanism 1 comprises a vertical bar. 0the upper end of which is slidable in its longitudinal direction in aswivel member I carried by a block 2 V mounted for adjustment as toposition upon the top plate 31 of the head 28. Said vertical bar 0 alsopasses through and has movement in a slot or opening l|3 provided in thehead top plate 31; and it carries a member I I4 equipped with a suitableroller having engagement with the outer cam slot I I5 provided in theface of the disk cam 52, the purpose of this camming engagement being togive the vertical bar 0 vertical reciprocating movement. Also connectedwith the vertical bar 0 is a horizontal transversing bar H5 whichcarries a member 1 furnished with a roller 8 in engagement with theinner cam slot 9 of saiddisk 'cam 52. The transversing bar 6 is mountedfor its transversing movement in. a horizontal plane in suitable guidebearings I provided for the purpose in the head 25. The cam groove 9 andassociated transversing' bar 6 have for their purpose'to effect alooping movement of the looper device |2| which is removably attached tothe lower ,endof the vertical bar 0 and extends downwardly therefrom.Said looper device I is angularly inclined towards the latch needle, and

needle. The cord for the looper device is drawn from the supply memberI22 applied to the top of the spindle 28,

- and also over a suitable movable spring-tensioned guide member I23supported upon the head 25.

, through the desired loop forming, presenting and l applying operationsin connection with the latch bobbin 29 over a fixed guide The operationof the looper mechanism is so chronized with the three-motion actuationof the latch needle that the looper device will 'present a formed loopto the latch needle hook each time the latch needle retracts fromitsforward above the tassel ring,

stitch the convolutions together. In this connec tion it is.to be notedthat the looper device in moving from and to the two loop presentinglocalities passes through ring. I

Feeding mechanism is provided whereby intermittently in relation to theapplication of the cord convolutions upon the tassel ring and the loopstitching of the same, to feed or circularly move the tassel ring aroundthe throat plate flange .34. The feed mechanism for this purposecomprises a feed dog I24 applied to a feed dog carrier I25 which isequipped with a roller I25 operating in a cam slot "I21 provided for thepurpose in the disk cam'58. The purpose of this camming actionengagement is to give the feed dog up and down movement with respect tothe tassel ring Attached to the feed dog carrier I25 is an arm I28 theouter end of which is pivotally united with a projection I28 on a rockshaft I38 mounted in suitable hearings on the rear extension 21 of thebed. Also attached to the rock shaft I38 is a slotted arm I 3| in whichis engaged a pin I32 projecting laterally from the outer end of anarrnI33. The inner end of the arm I33 has lost motion connection through aslot I34 with the shaft 53 and carries a roller I35 which is in cammingengagement with a cam slot I38 provided in the face of the disk cam 68.Through thischain of transmission parts the disk cam 58 causes atransverse reciprocation of the feed dog I24. Through the provision ofthis mechanism the piece, then a backward transverse movement while inengagement with the work-piece whereby to'eifect a circular feedingmovement of the latter and then a downward movement from the work-piece.In the present instance, this four-. motion actuation of the feed dog isso related to the application of cord convolutions thereon and theloop-stitching of the same that each time a convolution has been appliedtransversely around the work-piece and loop-stitched in place thetransverse movement of the feed .dog place so as to move the work-piecea distance substantially equal to the thickness of the cord strand sothat the next succeeding convolution can be applied in place upon theworkpiece, it being understood that in the present instance, itis-desired to cover the work-piece with a single layer covering composedof adjacent convolutions chain-stitched together after the fashion'ofwoven work; The machine of my invention'also involves a self-settingstop motion control whereby automatically to predetermine the theinterior of the tassel feed' dog is given in general a fourmotionactuation consisting of. a forward transverse movement well below thework-piece, then I an upward movement to engage it with the work- I-a,o7s,a'1s I ;exact number of loop convolutiom and chain stitches whichare necessary to provide a complete covering for a particular sizetassel ring.

' Thus, "for instance, if the tassel ring is of such sizethatthirty-four convolutions and loop stitches of a cord of a particularsize will properly cover the tassel ring in its entirety, then I employa control ratchet I31 having, thirtyfour ratchet teeth I31 on its crcumference. This ratchet wheel together with a stop motion disk I38which is fixed thereto is mounted to turnupon a shaft'l38 suitablysupported in a. bracket I43 extending upwardly from the bed plate. Thestop motion disk is provided'with a circumferential slot I4l adapted toreceive therein a roller I42 carried by a lever I43 fulcrumed at I44upon-an upright I45 extending upwardly from the bed plate. The rear endof the lever I43 is pivotally engaged at I43 with a foot-treadleconnecting bar I41. In this-arrangement, by drawing the connecting barI41 downwardly (through the proper actuation of the foot-treadle,

not shown) the forward end of the lever I43 will be elevatedsufliciently to withdraw the roller I42 from the notch I so that theroller will thence turn upon the circumference of the stop motion diskI38. For actuating the ratchet wheel I31," I provide a pawl I48 attachedto a crank arm I48 with which is pivotally connected an eccentric armI58 which' is actuated from an eccentric device I5I applied tothe mainshaft 41. Also mounted upon the main shaft 41 is a clutch part I52 whichcooperates with the clutch part 48 attached to the pulley 48, the clutchpart I52 havingpins I53 adapted tobe engaged and dis engaged with theclutch part 48 accordingly as the said clutch part I52 is moved axiallyof the shaft 41. Said clutch part I 52 is normally moved into clutchingengagement with the part 48 by means of. a clutch shift lever I 54 thelower end of' which is pivoted at I55 to the base 23, there being a pullspring I58 connected with shift lever I54 and tending normally to closethe clutch. Now the lever I43 carries a throw-'out-cam I51 having acamming edge I51 with which a pin I58 projecting from the clutch partI52 is adapted I to be engaged in order to disconnect the clutchagainstthe pull of the spring I55. Through this arrangement, each timethe roller I42 drops into the notch I4I, owing to the influence of apullspring I58 attached to said lever I 43, the throwout cam I51 will bedrawn into position wherebyv to engage the pin I58 and therebydisconnect the clutch and bring the parts to rest. I The number of teethon the control ratchet equaling the number of convolutions to beproduced upon-thework-piece and the parts being arranged so that theroller I42 will drop into the notch I4I immediately upon the applicationof the last .convolution with its chain-stitch, all of the mechanisms ofthe machine will be brought to rest on the, completion of the laststitch in the covering upon the tassel ring. T

' It will be recognized that the pull spring I58 attached to lever I43normally urges the latter in a direction to maintain the roller I42uponr the circumference of the turning, stop motion disk I38, and, whensaid roller drops into notch I52, with the result'that the pulley begrasped to bring the main shaft and hence the various mechanisms to aquick stop. To start the machine again it is necessary through properactuation of the rod I41 (preferably performed from a foot-treadle) toraise lever, I43, lifting the roller I42 from the notch so that it willagain reston the circumference of the stop motion disk I38, which actionautomatically results in re-establishing the clutching engagementbetween the clutch parts I 52 and 49 whereby to rotate the main shaftwith the driving pulley 48. In order to employ cords or threads ofdifferent sizes or gauges and work-pieces of difierent sizes, theratchet I31 with its stop mo--v tion disk maybe removed and anotherratchet applied which will have teeth equal in number to the number ofstrand convolutions requisite to cover the work-piece.

Referring more particularly to Figs. 12 and 13, it will be noted thatwhen the latch needle is in its forward position above the work, thelooper device operates to form a loop in a direction over the needlefrom the rear to the front thereof whereby to present the loop to thehook of the needle. At this time it will be noted that the needlecarries upon its shank and under its latch two previously formed loops.Afte r the needle picks up the loop presented by the looper device, suchpicked up- .loop during the retracting action of the needle is drawnthrough the two previously formed loops which, during this retractingaction of the needle are stripped off the needle (the pull of the loopsactuating the needle latch in the usual way for this purpose) by theactuation of the stripper device. In this way, on each retractingmovement of the needle at its upper level a chain-stitch is produced onthe circumference of the tassel ring. In connection with'the productionof this chain-stitch the feed dog is actuated in its upper position andtoward the rear of the machine so as to engage the work and move thetassel ring a distance equal to the thickness of the cord. Inconjunction with this movement, a, projection or land IBI upstandingfrom the feed dog comes'into engagement with the loop stitch and movesthe same and its connected convolution into close contact against thepreviously formed loop stitch and its convolution. Therefore as eachloop stitch is completed, it with its connected convolution is movedinto place upon the work-piece into close and firm engagement with itspredecessor. v

Referring to Figs. l6 and 1'7, it'will be seen thatafter the productionof the loop stitch, the

needle descends carrying in its hook the loop which was picked up at theupper level and which was drawn through the two cast-off loops; andfurther that in conjunction with this descending movement of the needlethe looper device also descends at the opposite edge of the work-pieceso as to carry its cord downwardly across such opposite edge. As shownin Figs. 18 and 19, when the needle advances below the work-piece theloop which was in itshook is slipped onto the latch and at the forwardposition of the needle the looper device presents another loop to thehook by swinging the cord under and upward around the needle, thismovement being the reverse of that shown in Figs.

12 and 13 pertaining to the presentation of a loop at the upper level.When the needle picks up its loop at its lowerlevel, it will then havetwo loops in its bill, as shown in Fig. 20. After this, the needle andlooper move upwardly a ain,

and as the needle performs its forward stroke the two loops are slippedfrom the hook into a,

- upper level. From the'upper level the cycle is then repeated for thelaying and stitching of another convolution of the cord upon the ring.Mounted upon the bed plate adjacent the opening of the throat plate andin a position tobe crossed by the needle latch is a tongue I62 thepurpose of which is to engage and positively close the latch on theloops in the event the latch does not itself, owing to the action of theneedle, properly close upon the loops. This tongue'is merely a safetydevice for this purpose and is a requisite only where cords of largesize or gauge are employed. It is found in practice that it is notneeded where threads or cords of relatively small thickness areemployed.

After the covering has been completed, the last convolution and loopstitch being made, and the expanded. the cord. for this purpose beingsupplied through the looper and from the bobbin, until the loop thuspicked up can be engaged over a post I63, the distance of which from theworkpiece is substantially equal to the length of pull cord that is tosupport the tassel ring pendant fromthe window shade. Such'an expandedloop is indicated at I64 in Fig. 21. After this, the strand whichconnects with the loop I64 and extends through the looper to the bobbinis-picked and extended underneath a spring holder I65 and thenceunderneath a ,cutting knife I66 which is moved downwardly so as to severthe cord and .produce thereby a loose end I61. Theopposite loose end I68which, at the beginning of the covering operation was engaged under aspring holder I69 is then, by hand, taken with theloose end I61 and tiedin a knot adjacent the inception of the large loop I64 and against itsloop stitch whereby to prevent unroving of the covering. 1 A

By the machine of my invention, I am enabled to cover tasselrings andother devices atv most rapidspeed, producing a neat-appearing anddurable coveringtthat is ornamented with the chain-stitches. The machinebeing automatic, unskilled labor with little or even with no previousexperience in covering articles, can be quickly taught to operate themachine and to produce coverings that are more uniform and attractivethan hand-made coverings.

It will be understood that the invention is not limited to theproduction of coverings on tassel rings, for it may be used tocovervarious kinds of Moreover, the terms and exent embodiments of thisinvention could be made without departing from the scope thereof, it isintended that all matter contained in the above description or shown inthe accompanying draw- .6 i e n'8.shallbeinterpretedasillustrativeandnot it: a limiting sense;

I-claim: i .i..'A plurality of separately actuated mecha- Q nisms for acore covering machine, the latter comprisingmeans iorintermitteniymoving the tween the intermittent movements thereof, and

another'oi. said mechanisms comprising a'looper adapted to form strandloops and present the same to the needle andeflective for such purposethrough the plane of movement of the needle and at the opposite sides ofthe core.

'2. In a machine for covering a core, the como bination with areciprocating guide, of a needle carrier with a needle connected withthe guide to be moved therewith, the connection compriscarrier with theneedle,jmeans for moving the carrier with its needle in the direction ofthe length thereof, and separate ineans for simultaneously moving thecarrier with its-needle and on the pivot of the carrier transversely-adistance at either side from and to the path of the longitudinalmovement thereof, the relation of the two moving means being such as toalternate and combine the transverse movements from and 35 to eitherside with the complete reciprocations.

3. In a'looper mechanism for a core-covering machine, the combinationwith an elongated pscillatable mounting member, of a looper connected.with said member to oscillate therewith,

a rotating .cam having outer and inner cam grooves, a part on the memberengaging the outer groove to give the memberand looper longitudinalreciprocating movement, and a guided transversing element on the membercarrying 45 a partengaging the inner groove to give the member andlooper transverse reciprocating movement for forming a-loop duringthelongitudinal reciprocation thereof, the relation of the two parts andcam grooves being such as to give 50 a loop forming transverse movementat substan- 55 core to becoveied, strand applying and stitching" tiallyeach of the two terminals of movement 01' every complete longitudinalreciprocation.

4. In a core covering machine, the combination of a stationary holderfor supporting a movable 65 ing to applyand'loop stitch the strand insuccessive strand. convolutions around the core, and means operated ,bythe main operating means ior "moving' the core substantially thethickness of I each completed strand convolution for the appli- 5. In aring core covering machine, the combination of cord feeding mechanism,loop presenting mechanism, means including a latch needle implement forapplying and loop-stitching the 75 presented loopsupon the core, meansfor operah ing a pivot to allow relative movement-oi the aomara ingsaidv feeding mechanism, loop-presenting mechanism, means connectedtherewith ior operating said }needle implement, means controlled by theoperation oi the operating means for positively moving the corecircularly to provide for the application or the cord convolutions'inregularsucoession about the core, and a stop'motion con trol controllingthe operation of the operatingmeans to limit the number of loopstitches, the latter being self-setting at the limit of the number ofcord convolutions to be appliedto the core,

said needle implement and loop-presenting mechanism being operatedtransversely about the exterior oi the core and through the interiorthereof, respectively, to apply cord convolutions trans? v'ersely aboutthe core.

6. In a core covering machine, the combination 1 ot a three-motionreciprocating action latch needle strand applying and loop-stitchingmechanism, having two of its terminals 01' movementin two spacedparallel planes alternately in such planes, and means for carrying andpresenting loops to said mechanism comprising reciprocating loopermechanism reciprocating at right angles to said planes and alsooperating in each of said planes traverse 01' said terminals of movementoi the needle so as to present a loop to the needle in conjunction witheach of said terminals of movementoi the needle alternately in the twoplanes, the third of the three-motion reciprocating actuations of theneedle being accomplished between the traverse operations of the loopermechanism and while the latter moves from one to the other of the twoplanes.

7. A-core-covering machine comprising, in combination, applying andstitching mechanism including a latch needle having reciprocatingmovement transversely across one side of the core and in respect toopposite faces thereof for applying cation of the next succeeding strandconvolution.

strands oi material and loop stitchingthe same, and coacting loopermechanism having reciprocating movement at the other side of the core topresent strand loops to the needle in relation to the opposite faces ofthe core, said parts being eftective in continued operation to cover thecore with successive transversely applied strand convolutions each oiwhich is loop-stitched by the needle.

I 8. A core-covering machine comprising, in combination, applying andstitching mechanism including a latch needle havingreciprocating'movementincluding lateral oscillation alternately fromside to side to alternately pass adjacent the opposite faces of the corefor applying thereto strand material and adapted at one point tolopp-stitclr the -material being applied, looper mechanism havingreciprocating and looping movement to present a strand loop to theneedle adjacent each of the opposite faces of the core, stationary meansfor retaining the core during the application 01' the strand materialthereto, and means for moving the core on the stationary means in timedrelation to the completion of the loop stitches.

9. A core-covering machine comprising, in combination, applyingandstitching mechanism including a latch'needle having reciprocatingmovement transversely across one side of the core and in respect to theopposite faces thereof for applye ing strand material to the core andadapted for such purpose to gather loops for chain-stitching thevstrands being applied, means for stripping the needle-gathered loopstocast ofl the chainstitching at, one point on the core, and loopermechanism reciprocating as a strand carrier to cally through and fromthe opposite faces of the core and having at each of the opposite facesthereof a looping movement for forming a loop to be seized by. theneedle. s

10. In a core covering machine which includes a latch needle and alooper, a stationary holder for carrying a core to be covered, means forreciprocating and guiding the latch needle in its longitudinal directionalternately across the top andbottorn faces of the core on thestationary holder, means for reciprocating the looper, vertithe planesof the top and bottom faces of the core and also laterally fromitsvertical path adjacent each of such faces to cause the looper to presenta cord loop to the needle when the latter operates acrosseac h face,said needle and looper coacting to apply cord convolutions transverselyaround the supported core, and means for intervally moving the core onthe holder to provide for the regular application on the core. of thecord convolutions. 11. A core covering-machine having a holder in theform of a hollow stationary collar having a. threat opening in its sidewall and adapted toretain a ring core exposed at the throat opening, a

v latch needle operated through the throat opening,

alternately above and below the core, a looper'operated through thehollow interiors of the collar and core adapted to present a cord loopto the needle alternately above and below the core, said needle andlooper coacting to apply a cord convolution transversely around the coreat said throat opening.

, 12. In a core covering machine, the combina-- tion with a stationarycollar having a throat opening and adapted to support a ring coreexposed at said opening and having circular movement, of a carriermounted for reciprocation towards and away from the collar, a latchneedle attached at its shank end by a pivot to said carrier toreciprocate therewith, and actuable means attached to said carrier forswinging and guiding it to pass through said throat opening alternatelyabove and below said core, and means for presenting a cord loop to saidneedle above and below the core.

13. In a core covering machine, a stationary I memberfor supporting acore to be covered, cord applying and loop stitching mechanism, meansfor reciprocating thesame to and from positions atopposite facesof thecore and across the front 'thereof, a cord looper mechanism, means formovand saidelement ing moved on ing the same to and from positions atopposite faces of the core and for actuating the same at such faces inmutuality with respect to the needle to present a loop to the' needleateach of such positions, such mechanisms between the face positionsfunctioning transversely of the core, respectively at opposite sidesthereof whereby to pass the cord transversely around the core. 1 14. Ina core covering machin' in combination, a cord applying mechanismcomprising a reciprocating latch needle and a cooperating looppresenting element, means for. reciprocating the needle and element intheir longitudinal direction in planes substantially at right angles toeach other and while so moving them to give them lateral movement fromtheir respective planes, the needle under its lateral movement beingmoved alternately to pass transversely across opposite faces of the coreto be covered bythe cord,

under its lateral movement bethe bias with respectto the face transversemovement of'the needle and at either face, which movements of the needleand element are so related to each other that the element presents acord loop-to the needle at-either face of the core to be covered.

' 15. In a core covering machine, a stationary member for supporting acore to be covered, cord applying-and loop stitching mechanism, meansfor reciprocating the same to and from positions at opposite faces ofthe core and acrossthe front thereof, cord looper mechanism, means formoving the latter to and from position at opposite. faces of the coreand for actuating the same at such iacesin mutuality with respect to thecord applying and loop stitching mechanism to present a loop to suchmechanism at each of such positions, such mechanisms between said facepositions functioning transversely of the core, respectively at oppositesides ther'eof whereby to apply the cord transversely around the core insuccessive convolutions, means effective to move the core byengaging oneormore of the completed convolutions thereon, which means is ineffectiveto perform such function while a convolution is being applied.

16. A core covering machine comprising a base, a core holden mountedthereon, said holder comprising a stationary member on which movably tomount the core and having a throat opening in which the core is exposed,a reciprocating member radially disposed to said opening, a needlehaving pivotal connection with said member and means for moving theneedle up and down so thatit will pass through saidopening alternatelyabove'and below the core, means for presenting cord loops to the needleabove and below the core, means for moving the core, a main operatingshaft, and means controlled by said shaft for operating said member,said needle moving means, said loop presenting' means and said coremoving means in predetermined timed relation.

17. In a core covering machine, the combination of relative movablemechanisms coacting to ing a throat opening'for exposing the core, oneof said mechanisms comprising a latch needle having movement inalignment with said opening across the front side of the core andthrough said opening alternately above and below the bottom faces of thecore, another mechanism comprising a looper having movement at the rearside of the core and ,having further movements in which loops arepresented to the needle at the top and bottom faces of the core, meansfor moving the core after the application thereon of eachcordconvolution to bring fre'shportions'of the core intoexposure atthe'throat plate, and means in connection with the last said means forpressing the completed convolutions together.

18. In a machine of the character described, a holder for an element tobe sheathed, a crocheting hook, mechanism cooperating with the hook tocrochet a cord aboutsaid element, said mechanism including means forfeeding the element into position by acting on said cord to force thatpart of the free cord close to saidelement against the endmost completedstitch on said element and to feed said element after the formation ofeach I stitch and driving means for said hook and said mechanism.

